Running tool

Abstract

A running tool useful for installing lock mandrels and other subsurface wireline tools in a well bore, the running tool comprising top sub (12), retainer sleeve (14), bottom setting sleeve (16), core (18), insertion sleeve (44) and lockout sleeve (66). Running tool (10) is adapted to set lock mandrel (22) in landing nipple (60) and thereafter be released by jarring up to disengage lock retainer lug (28) from recess (30) in lock mandrel (22) and to disengage locking sleeve lug (32) from recess (34) in locking sleeve (36). Outwardly biased leaf spring (108) and latching lug (112) are provided to lock running tool (10A) in a fully released position. Emergency shear screws (68) and lockout lugs (90) are provided to permit withdrawal of running tool (10) and lock mandreal (22) from the well bore in case of a misrun.

We claim: 
     
       1. A running tool for use with subsurface wireline equipment, the running tool comprising: means for releasably coupling the running tool to a lock mandrel to permit the lock mandrel to be lowered into engagement with a landing nipple in a well bore;   means for locking the lock mandrel in the landing nipple;   means for retrieving the lock mandrel while still coupled to the running tool in case of a misrun; and   means for releasing the running tool from the lock mandrel after the lock mandrel is locked in the landing nipple;   the running tool comprising first and second concentrically disposed, longitudinally slidable sleeve members;   the means for releasably coupling the running tool to the lock mandrel comprising at least one radially slidable lug member adapted to engage a recess in the lock mandrel when the first sleeve member is moved in a downward direction radially inward from the second sleeve member, the lug member being adapted to withdraw from the recess in the lock mandrel whenever the first sleeve member is moved in an upward direction radially inward from the second sleeve member; and   the first sleeve member being adapted to move in the upward direction radially inward of the second sleeve member whenever the running tool is jarred upwardly.   
     
     
       2. A running tool for use with subsurface wireline equipment, the running tool comprising: means for releasably coupling the running tool to a lock mandrel to permit the lock mandrel to be lowered into engagement with a landing nipple in a well bore;   means for locking the lock mandrel in the landing nipple;   means for retrieving the lock mandrel while still coupled to the running tool in case of a misrun; and   means for releasing the running tool from the lock mandrel after the lock mandrel is locked in the landing nipple;   the running tool comprising first and second concentrically disposed, longitudinally slidable sleeve members;   the means for releasably coupling the running tool to the lock mandrel comprising at least one radially slidable lug member adapted to engage a recess in the lock mandrel when the first sleeve member is moved in a downward direction radially inward from the second sleeve member, and   means for disengaging the lug member from the recess in the lock mandrel when the running tool is jarred upwardly after the lock mandrel is locked in the landing nipple.   
     
     
       3. A running tool for use with subsurface wireline equipment, the running tool comprising: means for releasably coupling the running tool to a lock mandrel to permit the lock mandrel to be lowered into engagement with a landing nipple in a well bore;   means for locking the lock mandrel in the landing nipple;   means for retrieving the lock mandrel while still coupled to the running tool in case of a misrun; and   means for releasing the running tool from the lock mandrel after the lock mandrel is locked in the landing nipple;   the running tool comprising first and second concentrically disposed, longitudinally slidable sleeve members;   the means for releasably coupling the running tool to the lock mandrel comprising at least one radially slidable lug member adapted to engage a recess in the lock mandrel when the first sleeve member is moved in a downward direction radially inward from the second sleeve member, the lug member being adapted to withdraw from the recess in the lock mandrel whenever the first sleeve member is moved in an upward direction radially inward from the second sleeve member;   the lock mandrel comprising a longitudinally slidable locking sleeve; and   the means for locking the lock mandrel in the landing nipple comprising a first longitudinally slidable sleeve member and at least one radially slidable lug member adapted to engage a recess in the locking sleeve when the first sleeve member is moved downwardly relative to the locking sleeve, and a second longitudinally slidable sleeve concentrically disposed radially inward from the first sleeve, the second sleeve comprising a recess adapted to receive the lug member when the lug member is not engaged in the recess in the locking sleeve, and spring means adapted to bias the recess in the second sleeve away from the recess in the locking sleeve.   
     
     
       4. A running tool for use with subsurface wireline equipment, the running tool comprising: means for releasably coupling the running tool to a lock mandrel to permit the lock mandrel to be lowered into engagement with a landing nipple in a well bore;   means for locking the lock mandrel in the landing nipple;   means for retrieving the lock mandrel while still coupled to the running tool in case of a misrun; and   means for releasing the running tool from the lock mandrel after the lock mandrel is locked in the landing nipple;   the running tool comprising first and second concentrically disposed, longitudinally slidable sleeve members;   the means for releasably coupling the running tool to the lock mandrel comprising at least one radially slidable lug member adapted to engage a recess in the lock mandrel when the first sleeve member is moved in a downward direction radially inward rom the second sleeve member, the lug member being adapted to withdraw from the recess in the lock mandrel whenever the first sleeve member is moved in an upward direction radially inward from the second sleeve member;   the lock mandrel comprising a longitudinally slidable locking sleeve, and the means for locking the lock mandrel in the landing nipple comprising a first longitudinally slidable sleeve member and at least one radially slidable lug member adapted to engage a recess in the locking sleeve when the first sleeve member is moved downwardly relative to the locking sleeve, and a second longitudinally slidable sleeve concentrically disposed radially inward from the first sleeve, the second sleeve comprising a recess adapted to receive the lug member when the lug member is not engaged in the recess in the locking sleeve; and   means for withdrawing the lug member from the recess in the locking sleeve and moving the lug member back into the recess in the second sleeve whenever the running tool is jarred upwardly after the lock mandrel is locked in the landing nipple.   
     
     
       5. A running tool for use with subsurface wireline equipment, the running tool comprising: means for releasably coupling the running tool to a lock mandrel to permit the lock mandrel to be lowered into engagement with a landing nipple in a well bore;   means for locking the lock mandrel in the landing nipple;   means for retrieving the lock mandrel while still coupled to the running tool in case of a misrun;   means for releasing the running tool from the lock mandrel after the lock mandrel is locked in the landing nipple; and   emergency means adapted to permit withdrawal of the running tool and the lock mandrel from the well bore without locking the lock mandrel in the landing nipple and without releasing the running tool from the locked mandrel, the emergency means comprising at least one shearable member adapted to be sheared by jarring the running tool upwardly.   
     
     
       6. The running tool of claim 5 wherein the emergency means comprises a plurality of circumferentially spaced shearable members. 
     
     
       7. The running tool of claim 5 wherein the emergency means comprises at least one radially slidable lug member adapted to limit relative longitudinal motion within the running tool during withdrawal of the running tool from the well bore. 
     
     
       8. The running tool of claim 7 wherein the emergency means further comprises a spring-biased lug carrier adapted to force the lug member radially outward when the shearable member is sheared. 
     
     
       9. A running tool for use with subsurface wireline equipment, the running tool comprising: means for releasably coupling the running tool to a lock mandrel to permit the lock mandrel to be lowered into engagement with a landing nipple in a well bore;   means for locking the lock mandrel in the landing nipple;   means for retrieving the lock mandrel while still coupled to the running tool in case of a misrun;   means for releasing the running tool from the lock mandrel after the lock mandrel is locked in the landing nipple; and   further comprising means for latching the released running tool after the lock mandrel is locked in the landing nipple, the means for latching the running tool comprising at least one latch assembly further comprising a leaf spring outwardly biased in the radial direction and at least one radially slidable latching lug.   
     
     
       10. A running tool comprising: a retainer sleeve and a core coaxially disposed within the retainer sleeve and coupled thereto to limit relative longitudinal movement therebetween;   an insertion sleeve slidably coupled to the exterior of the core;   a top sub slidably disposed between and operably coupled to the retainer sleeve and the core;   a lockout sleeve releasably coupled to the top sub between the retainer sleeve and the core so as to limit relative longitudinal movement between the lockout sleeve and top sub while coupled;   a lower setting sleeve slidably disposed around the core and slidably coupled to the lockout sleeve;   at least one lug adapted to engage a recess in a lock mandrel to limit relative longitudinal motion between the retainer sleeve and the lock mandrel;   at least one lug adapted to engage a recess in a lock mandrel locking sleeve for use in locking the lock mandrel to a landing nipple whenever the running tool is jarred in an upward direction; and   means for releasing the running tool from the lock mandrel, said means comprising means for releasing all lugs engaging the lock mandrel and lock mandrel locking sleeve when the running tool is jarred in an upward direction after the lock mandrel is locked to the landing nipple.   
     
     
       11. The running tool of claim 10, further comprising emergency means adapted to permit withdrawal of the running tool and the lock mandrel from a well bore without locking the lock mandrel in the landing nipple and without releasing the running tool from the lock mandrel. 
     
     
       12. The running tool of claim 11 wherein the emergency means comprises at least one shearable member adapted to be sheared by jarring running tool upwardly. 
     
     
       13. The running tool of claim 12 wherein the emergency means comprises a plurality of circumferentially spaced shearable members. 
     
     
       14. The running tool of claim 11 wherein the emergency means comprises at least one radially slidable lug member adapted to limit relative longitudinal motion within the running tool during withdrawal of the running tool from the well bore. 
     
     
       15. The running tool of claim 14 wherein the emergency means further comprises a spring-biased lug carrier adapted to force the lug member radially outward when the shearable member is sheared.